package com.wx.gof.pattern.behavioral.observer.pull;

/**
 * @ClassName Observer
 * @Author wx
 * @Description 观察者接口
 * @Date 2018-12-14-20:44
 */
public interface Observer {
    /**
     * @methodName: update
     * @author: wx
     * @description: 观察着回调方法
     * @param observerable
     * @date: 2018/12/14
     * @return: void
     */
    void update(Observerable observerable);
}
